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Published on: July 18, 2025
Liver fibrosis in overweight patients
V Ratziu1, P Giral, F Charlotte
1Service d'Hépatogastroenterologie, Hôpital Pitié Salpétrière, Paris, France.
Overweight patients with abnormal liver function tests frequently have liver fibrosis. A simple clinicobiological score can help identify those who may benefit from a liver biopsy.
Area of Science:
- Hepatology
- Internal Medicine
- Clinical Pathology
Background:
- Overweight individuals with abnormal liver function tests present a diagnostic challenge regarding the need for liver biopsy.
- The prevalence and risk factors for serious liver injury in this population are not well-established.
Purpose of the Study:
- To determine the frequency of septal fibrosis and cirrhosis in overweight patients with abnormal liver function tests.
- To identify clinical, biological, and histological factors associated with liver fibrosis in this cohort.
- To develop a predictive score for identifying patients who require liver biopsy.
Main Methods:
- Retrospective study of 93 overweight patients (BMI > 25 kg/m²) with abnormal liver function tests and no other known liver disease.
- Analysis of clinical, biological (including triglycerides and ALT), and histological variables.
- Statistical testing for association with septal fibrosis or cirrhosis.
Main Results:
- Septal fibrosis was found in 30% of patients, with 11% having cirrhosis.
- Independent risk factors for septal fibrosis included age (≥50 years), higher BMI (≥28 kg/m²), elevated triglycerides (≥1.7 mmol/L), and elevated ALT (≥2N).
- A predictive score combining age, BMI, triglycerides, and ALT demonstrated high sensitivity (100%) for ruling out septal fibrosis.
Conclusions:
- Septal fibrosis is common in overweight patients with abnormal liver function tests.
- A clinicobiological score incorporating age, BMI, ALT, and triglycerides can aid in selecting patients for liver biopsy.
- This score offers a valuable tool to improve the diagnostic pathway for non-alcoholic fatty liver disease in at-risk individuals.
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Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...

